Fire-place heater



R. 8a J. LOGAN-Q. Fire-Place Heater.

No. 227,171. Patented May 4 1880.

Y W iTI G/SSQJ" ZI W PETERS. PHOYO-LITH UNITED STATES PATENT OFFicE.

ROBERT LOGAN AND JOHN LOGAN, OF MOKEESPORT, PENNSYLVANIA.

FIRE-PLACE HEATER.

SPECIFICATION forming part of Letters Patent No. 227,171, dated May 4,1880.

Application filed February 24, 1680.

To all whom it may concern Be it known that we, ROBERT LOGAN and JOHN LOGAN, of McKeesport, in the county of Allegheny and State of Pennsylvania, have invented certain newand useful Improvements in Open Fire-Place Heaters; and we do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a perspective view. Fig. 2 is a side or end elevation. Fig. 3 is a longitudinal vertical section, and Fig. 4 is a transverse vertical section.

Similar letters of reference indicate corresponding parts in all the figures.

- ()ur invention has relation to open fire-place heaters such as are used with open grates; and it consists in the construction of an improved back for the same, which forms a hollow air-chamber, provided with a system of fines for conductingthe products of combustion through said chamber, and with diaphragms or transverse partitions for deflecting and obstructing the current of air entering the said hollow chamber to be heated, substantially as hereinafter more fully set forth.

In the drawings, A is the fire-back, which is made of cast-iron, hollow, with an outwardly-flaring front or face, a, and inclined top, I), facing the gathering or throat of the flue, and a straight back, U. The sides B B of this hollow casting are made (preferably) perpendicular, and are provided with registers or openings (1 (1, one of which, on one side, is near the bottom, and the other, on the opposite side, near the top, of the hollow fire-back.

D D are two partitions, one of which, D, facing the inlet (1, extends from the bottom of the chamber up to within about six inches from the top, while the opposite diaphragm, D, which is placed in the opposite end of the chamber facing the outlet (1, extends from the top downward to within about six inches from the bottom. These partitions or diaphragms-oheck the direct draft or current of air between the inlet cl and outlet (1, retarding its progress through the hollow fire-back.

Inserted into this back, either during the process of casting or afterward, are two sets of curved tubes or flues, denoted, respectively, by the letters E and F. The lowermost set or series, E, open out into the face-plate at 66, and into the inclined top atff, while the second set or series, F, alternating with the dues of the lower set, E, have theirmouths or openings at g h respectively, thus crossing the intermediate alternating flues E, as shown more clearly in Fig. 4 of the drawings.

The hollow back beingbuilt into the fireplace in the usual manner, it is clear that a certain part or portion of the products of combustion, instead of ascendingdirectly into the throat of the line above, will be drawn through the curved fines E F, thus heating the air contained in the chamber within the casing or hollow fire-back A. Cold air is fed into this chamber through the lower inlet, (1, on one side, and escapes as warm or heated air from the outlet at in the opposite corner, either into the same room in which the heater is placed, or it may be conducted, through a communieating hot-air flue provided with a suitable register or registers, to a room or rooms located in other parts of the house.

Having thus described our invention, we claim and desire to secure by Letters Patent of the United States- A hollow fire-back, A, having an inlet, (1, and outlet (1 in diagonally-opposite corners, and provided with the deflecting and retarding diaphragms D D and two or more rows of curved lines, E F, arranged in their respective rows or series in relation to the fire-back or casin g, into which they are inserted to alternate with each other, substantially in the manner and for the purpose herein shown and specified.

In testimony that we claim the foregoing we have hereunto set our hands.

ROBERT LOGAN. JOHN LOGAN.

Witnesses W. M. GoRMLY,

GEO. F. TURNER. 

